Shenzhen Fengshi Technology Co., Ltd
Focus on R&D and Produce High Brightness LCD Products No.1 Delivery Ranked in The Industry on Large Sizes Modules
1. Shenzhen Fengshi Technology Co., LTD who is a ISO9001 & 14001 certified manufacturer,
all the products are full 100% inspection per each batch.
2. We have high temperature test camber, brightness and color tester BM-7, Vibration Test
Bench test and 8Hours aging test to make sure each product will be perfect meet customers'
needs.
3. Each product will be strict inspect before shipping, all the OCs we're using A or A+ grade.
4. Each product brightness uniformity is controled the min. level is 70%(edge backlight typr)~
80% (direct backlight type).
| Defective item | Size | Level | |||
| A+ | A | A- | B | ||
| Highlight spot | Two points distance ≥ 15mm | 0 | Area B N≤ 3 |
AB Area N≤5 |
AB Area N≤8 |
| dark spot | Two points distance ≥ 5mm | 0 | N≤3 | N≤5 | N≤8 |
| Highlight + dark spot | 0 | N≤5 | N≤8 | N≤10 | |
| Two highlights | Two points distance ≥ 15mm | Not allowed | N≤1 | N≤2 | |
| Two dark spots | Two points distance≥5mm | Not allowed | N≤1 | N≤3 | |
| Three points | Not allowed | Not allowed | |||
| Sag or damage |
Average diameter (mm)D≤ 0.5 |
Not allowed | Not allowed | ||
| Stain, spot |
W≤0.3,L≤0.5mm pitch≥ 5cm |
Not allowed | Area B N≤ 1 | Area B N≤ 2 | Area BN≤3 |
| Scratch, crush | L≤0.5mm0.3≤W≤0.5mm | Not allowed | Not allowed | Area BN≤1 | |
| Dark lines, bright lines | L≤0.5mm0.3≤W≤0.5mm | Not allowed |
Not allowed |
N≤1 | N≤2 |
| Light leakage | 中≤5mm | Not allowed |
Not allowed |
N≤1 | N≤2 |
|
White screen, flower screen |
Not allowed |
Not allowed |
Not allowed |
Not allowed | |
| All the above defects cannot exist at the same time | |||||
